We present an analysis of dust kinematics in the local starburst galaxies M82 (NGC 3034) and NGC 253 using polycyclic aromatic hydrocarbon (PAH) features observed with JWST/MIRI spectroscopy. We are able to produce high-quality velocity maps of the 5.2, 6.2, and 11.3 μm PAH features, as well as numerous lines of molecu...
F. Donnan, K. Sandstrom, A. Bolatto et al.· Astronomical Journal· 0 citations
A complete overview of the stellar, gas and dust contents of galaxies is key to understanding their assembly at early times. However, an estimation of molecular and atomic gas reservoirs at high redshift relies on various indirect tracers, while robust dust mass measurements require multiband far-infrared continuum obs...
H. Algera, R. Herrera-Camus, M. Aravena et al.· Astronomy & Astrophysics· 0 citations
In low-metallicity environments, the reduced dust abundance debilitates the shielding of molecular clouds against far-ultraviolet (FUV) radiation, enhancing CO photodissociation and producing extended envelopes of “CO-faint” or “CO-dark” molecular gas. The ̧ii 158 μm fine-structure line is one of the brightest coolants...
K. Rodriguez-Ambler, R. Herrera-Camus, M. Rúbio et al.· Astronomy & Astrophysics· 0 citations
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